Sanitary disinfecting and deodorizing block.



PATENTED JULY 31,1906;

J. T. FREBSTONE. SANITARY DI SINFEGTING AND DBODORIZING BLO APPLIOATION PILED S EPT.8.1905- Ml VEN TOR. (10, 5 P T 77re,sfaw

WITNESSES:

. they JOSEPH THOMAS FREESTONE, OF ROCK FERRYeENG LAND.

SANITARY DIS INFECTING AND DEODORlZl NG BLOCK.

Specification of Letters Patent.

Pa.tented July 31, 1906.

Application filed September 8, 1905. Serial No. 277,517.

To, all whont it may concern.-

Be it known that I, JOSEPH THOMAS FREE- STONE, a subject of the King of England, residing at Rock Ferry, in the county of Chester, England, have invented new anduseful Improved Sanitary Disinfecting and Deodorizing Blocks, of which the following is a specification.

This invention refers to the manufacture of disinfecting and deodorizing or sanitary blocks used in spaces, sewage gulleys, traps, cisterns, and the like, the base disinfecting o1 deodorizing substance being naphthalene, which is a Well-known deodorizing and disin-. fecting substance.

This invention consists of the manufacture of such blocks, preferably perforated blocks, which will dissolve or vaporize away uni- .forn1lythat is, at a uniform rate throughout their bodies from thetime they are first put in use till the endand so obviate the defects in this res ect which exist deodorizing and disinfecting blocks hitherto made in which naphthalene has been employed as a and disinfectin and which also will be stronger an more durable.

The blocks of perforated form," a perspective view of which is shown in the drawing hereto annexed, are made u in soluble formfor use in connection with iquids by which will be dissolved, such as water and sewage liquids. A

The soluble blocks for use for disinfecting and deodorizing water or sew e fluids are comprised of the following ingre ients in the proportions statednainely, hard-pressed and highly-refined naphthalene, thirty .parts resin, twenty-five parts pine-oil, twelve medium parts; caustic soda or alkali, thirteen parts, and water fifteen parts. This specific form of naphthalene referred tonamely, hardpressed highly-refined naphthalene-is found to produce a superior lock to that produced from naphthalene in granular form and is harder and stands more rough handling or knocking about, and the specific proortions of ingredients referred to i'oduce a block which not only is harder an resistant to rough handling, but will dissolve umformlythat is, at a uniform rate from the commencement of use to the endand will not disintegrate toward the end of its ex stence into little pieces.

The ingredients are combined to ether and compressed into perforated bloc s of the form shown, and these blocks may be suported, suspended, or used in any suitab nown way, the perforations of the blocks being provided to equally distribute thesurface in the block acted upon by the liquid as far as possible and increase the surface which is to be acted upon by it.

What is claimed is A sanitary block soluble in water or fluids containing water, consisting of na hthalene, hard pressed and highly refined, thirty parts; resin, twenty-five parts; pine oil, twelve parts; alkali, thirteen arts;- and water, fifteen parts; substantial y as set forth.

In testimonywhereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH THOMAS FREESTONE. 

